Ultinon Pro7000 LED car signaling bulb (W21W white), 12V/24V

I've used the white LEDs to replace the standard filament bulbs for the reverse lights in my 2014 Touareg and they work really well. No errors, they're brighter than the standard bulbs, but not excessively, whilst also looking much more modern. Like for like fit, although they're a little more expensive, they quality and performance makes them better value than some of the cheaper LEDs you find.

The media could not be loaded. Bulbs used for brake lights as one of the old halogen bulbs blew out. Perfect fit in the existing housing and these led bulbs light up instantly when braking which make them safer compared to the slow fading in of halogen bulbs. They are brighter than the halogen bulbs and they look brighter in person than on camera. No canbus error aswell.

I changed my brake lights (one had blown) for these LEDs. Unbeknown to me, because they are low wattage the car's management system detected it as an electrical fault and the EPC warning light came on. It took me a trip to the garage (and almost a £120 bill for fitting a new brake switch) before they spotted the LED bulbs. Ordinary bulbs were put in and problem solved. If your car didn't come with LED bulbs, don't use them.

Superb quality. Bright and work very well.

Firstly, great product, works well and is bright. However, I purchased these to put on a motorcycle (2022 Harley-Davidson with bullet shaped indicators/turn signals) and they don’t fit in the reflector as the base isn’t long enough before it widens where the black plastic is. Shame as had hoped for a direct replacement.

Work good when they need but after turning on they're really dimly lit even when the lights are turned on, this resets after you turn the car on and off but I don't want this to keep happening, color is bright but not as bright as it thought it'd be, a nice white very clear, they don't present an error but they also flicker occasionally will be going back unfortunately, they are a perfect fit for t10

Replaced old boot light. Much whiter and brighter. No errors as of yet.

Bright and nice red color. Perfect fit for brake lights on old car.